钢——混凝土叠合板桥面层间应力分析

【作者】 项长生；

【导师】 朱彦鹏； 宋彧；

【作者基本信息】 兰州理工大学 ， 结构工程， 2005， 硕士

【摘要】 本文针对叠合板,根据应力变分原理和位移变分原理,导出叠合板的混合变分方程,并将其转换成状态方程,使状态空间理论和变分原理相结合,给出了一般边界条件下横观各向同性和正交各向异性体在任意荷载作用下的变分解。此解满足叠层板的基本方程和层间连续条件,能求出弹性叠层板的全部位移和应力分量。将数据结果与精确解及SAP5和SAP84有限元解进行了对比,证明了所阐述的方法原理及其公式推导是正确的。更多还原

【Abstract】 According to the stress and displacement variational principle, aim at the combined plate, the mixed variational equations are established from which the state equation is established. Thus ,the theory of state space is combined with variational principle and the variational solutions are presented under arbitrary loads for transverse isotropic、orthortropic bodies on general boundary conditions. The variational solutions are presented for the thku、moderately thick and thick laminates with four simple supported edges、clamped edges on two opposite sides and simple supported between plies of the laminates. The plates reaction, all the displacement and stress components can be obtained. Numerical results are compared with exact solutions and those calculated by using SAP5 or SAP84.更多还原